Epson S1C62 Family manual 17

INTRODUCTION

Tool	Problem		Remedy measures
ASM62XX	An R error occurs although the final	The cross assembler is designed to output "R error" every
	page is passed.	time the page is changed. Use a pseudo-instruction to set the
		memory, such as ORG or PAGE, to change the page. See
		"Memory setting pseudo-instructions" in the cross assem-
		bler manual.
MDC62XX	Activation is impossible.	Check the following and remedy if necessary:
		• Is the number of files set at ten or more in OS environ-
			ment file CONFIG.SYS?
MLA628X	No melody is output.	Check the following and remedy if necessary:
		• Has the OPTLD command of the ICE been executed? (When
			the ICE is connected to the evaluation board)
		•	Is the MELODY ROM installed? (When the evaluation
			board is used independently)
		• Is the attack bit of the melody data set to "1"?
Evaluation	The evaluation board does not work	Check the following and remedy if necessary:
board	when it is used independently.	•	Has the EPROM for F.HEX and S.HEX been replaced by
S5U1C62xxxE			the EPROM for the target?
		•	Is the EPROM for F.HEX and S.HEX installed correctly?
		• Is the appropriate voltage being supplied? (5V DC, 3 A,
			or more)
		•	Are the program ROMs (H and L) installed correctly?
		•	Is data written from address 4000H? (When the 27C256
			is used as the program ROM)
		•	Is the EN/DIS switch on the evaluation board set to EN?
	Target segment does not light.	Check the following and remedy if necessary:
		•	Is an EPROM with an access time of 170 ns or less being
			used for S.HEX.
		•	Has the VADJ VR inside the evaluation board top cover
			been turned to a lower setting?

S1C62 FAMILY	EPSON	I-7
DEVELOPMENT TOOL REFERENCE MANUAL